Can the four edge milling cutter directly cut off the knife?
No matter how many pieces of integral milling cutters can not be pushed directly, it is called a knife from the point of view of machining.When the cutter is in the lower part of the cutter, the center point has no cutting power, whether or not there is a center hole. The material that cuts a little bit is not quite apparent, it is to rely on external force to pull directly past, cut hard material to break tool directly. Therefore, the general use of spiral down knife or slash knife to avoid stepping knife.I hope I can help you!
Look at the four blade four cutter can not completely cutting all (usually not), is, I use a vertical two edged milling cutter generally only 1mm, but the four cutter can tilt the knife and spiral knife.
You can see if there is a center hole in the end face of the four edge milling cutter, and if you don't have a center hole, you can lower the knife directly. If there is a central hole, you can not directly lower the knife, because the central hole is not cut, the lower part of the center hole directly against the bottom of the hole, so that the milling cutter can not go down the feed. You can also compare it with the keyway cutter. The keyway cutter can be drawn down directly. The end face of the keyway milling cutter has no center hole.
